Home / 71,705.66-98,956.20-39,441.63

Finding the Fourth Proportional to 71,705.66, 98,956.20 and 39,441.63

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Solution

The fourth proportional to 71,705.66, 98,956.20 and 39,441.63 is: 54,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,705.66 : 98,956.20 = 39,441.63 : x
  2. Step 2: Convert to fraction form
    71,705.66/98,956.20 = 39,441.63/x
  3. Step 3: Cross multiply
    71,705.66x = 98,956.20 × 39,441.63
  4. Step 4: Simplify right side
    71,705.66x = 3,902,993,826.61
  5. Step 5: Solve for x
    x = 3,902,993,826.61/71,705.66
  6. Step 6: Final answer
    x = 54,430.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.